171885740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{661099}}^1$

素因数の和:661121

約数の個数: 24

約数和(自身を含む): 388726800

約数和(自身を除く): 216841060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 661099, 1322198, 2644396, 3305495, 6610990, 8594287, 13221980, 17188574, 34377148, 42971435, 85942870, 171885740]

約数ペア:

[(1, 171885740), (2, 85942870), (4, 42971435), (5, 34377148), (10, 17188574), (13, 13221980), (20, 8594287), (26, 6610990), (52, 3305495), (65, 2644396), (130, 1322198), (260, 661099)]